2010-02-04[dancingsheep]: *shrugs* I would leave it and see what others say. I mean, I really don't know what the rules are with such things.

2010-02-05[SilverFire]: I googled it quickly at it seems a point of common uncertainty. But there's a prevailing opinion that national symbols can't be copyrighted, and that would cover flags. If wikipedia are using it as a public domain image, I think we're fine for now. :)